21032020223 has 8 divisors (see below), whose sum is σ = 22127295120. Its totient is φ = 19964473920.

The previous prime is 21032020193. The next prime is 21032020241. The reversal of 21032020223 is 32202023012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21032020223 - 2¹⁰ = 21032019199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032023223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6930593 + ... + 6933626.

It is an arithmetic number, because the mean of its divisors is an integer number (2765911890).

Almost surely, 2^21032020223 is an apocalyptic number.

21032020223 is a deficient number, since it is larger than the sum of its proper divisors (1095274897).

21032020223 is a wasteful number, since it uses less digits than its factorization.

21032020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13864297.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 21032020223 its reverse (32202023012), we get a palindrome (53234043235).

The spelling of 21032020223 in words is "twenty-one billion, thirty-two million, twenty thousand, two hundred twenty-three".